Machine for making paper dishes.



G. HALBREICH.

MACHINE FOR MAKING PAPER DIsHBs.

l APPLICATION FILED JAN. 3, 1908.

Patented July 6, 1909.

4sHnnTs-sHIzET 1.

"Ulm" N n A... .m m

c. HALBRBIGH.

MACHINE FOR MAKING PAPER DISHES.

APPLICATION FILED JAN. 3, 1908.

Patented July 6, 1909.

4 SHEETS-SHEET 2.

WMM@ aoco c. HALBREIGH. MACHINE FOB MAKING PAPER DISHES.

APPLIOAITION FILED IABLB, 1908.

Patented Ju1y`6, 1909.

'asuma-SHEET 3.

d 1 3511 tHeM/w11* witness@ G. HALBREICH.

MACHINE FOB. MAKING PAPER DIBHBS.

APPLICATION FILED JAN. 3, Q08. 926,866. Patented July 6, 1909. 4SHEETS-SHEET 4.

UNITED STATES PATENT OFFICE.

CHARLES HALBREICH, O13'l NEW YORK, N. Y.

AMACHINE FOR MAKING" PAPER DISHES.

Specification of Letters Patent.

Application led January 3, 1908.

Patented July 6,1909.

serial No. 409,155.

' of the blanks, and to this end my invention comprises the noveldetails of improvement and combination of parts that will be more fullyhereinafter set forth and then pointed out in the claims.

4Reference is to be had to the accompanying drawings forming parthereof, wherein- Figure 1 is a plan view of a machine embodying myinvention, part being broken away, Fig. 2 is a longitudinal sectionthereof. Fig. 3 is a cross section illustrating, on opposite sides ofthe line a, different positions of the operating parts, Fig. 4 is a planview of a blank for the paper dish. Fig. 5 is aside view of a foldeddish, partly insection at the left of the line b, and Fig. 6 is an endview of the folded dish, partly in section at the left of the line c.

Similar numerals and letters of reference indicate corresponding partsin the several views.

The numeral 1 indicates a suitable frame, whose bed or table-likeportion 1 is suitably dis folding members or die parts fit. At 3 is avertically movable plate having side.

members 4, hinged to its edges, end members 5 hinged to its ends, andcorner members 6 hinged at the corners or angles between the adjacentmembers 4, 5, the members 4, 5, 6 being adapted to rest upon the flatportion of the table when plate 3 is raised, as in Fig. 2

disposed forming a cavity 2 into which the up and down movements I haveshown the same provided with depending plungers 8 that are guided insuitable bearings 9 in table 1, .said plungers having flanges 8a tolimit their upward movement, springs 1U shown within said plungers andbearing against caps 11 secured on table 1, servin normall to raiseplate 3, the arrangement eing suc 1 that when plate 3 yis raised to itsuppermost position and limited by flanges 8a bearing against the tablepart the folding members 4,

5, 6 will extend outwardly substantially in line with plate 3. Above theparts 3, 4, 5, 6, and reciprocative with respect thereto is a pressingplate 12, carried by rod or post 13,'

and to the edges of plate 12 are hinged folding members 14 that lie overthe members 4, and to the ends of plate 12 are hinged folding members 15that lie over the members 5.

To the members 14 and I15 are pivotally connected upwardly extendinglinks 16, the upper ends of which are shown forked at 16a and carry pins17 (preferably provided with anti-friction rolls) that enter verticalslots 18 in guides or wings 19 secured to post 13, which guides or wingsare shown projecting from a sleeve 2() secured on said post. When post13 is raised 'above plate 3, as in Fig. 2 and at the left in Fig. 3, themembers 14 and 15 will be suspended in an outward position bylinks 16and guides 19, but when said post is depressed to fold a blank for adish the parts 17 will slide upwardly through the slots 18 for causing'pressure from Wings .19 through links 16 to the members 14 and 15 forpressing the dish blank, as at the right in ll`he blank to be folded indish form is shown in Fig. 4 ,and has a centrally'dis osed portion A,side portions B, end portions C), and corner ortions D, all weakened bythe score lines Eli shown in dotted lines, to permit proper folding ofthe blank. The end portions C of the blank have slots C and the edges ofsaid portions C are cut on lines con'- verging outwardly, at C2, whilethe corner portions D are cut on lines D at an angle t0 the edges C2, toprovide tongues F, and notches G are out in the outer or extreme edgesof the corner portions D to engage the material at the outer ends of theslots C when the tongues F are pushed through said slots, in the. mannershown in Fig. 6, to lock the corner portions D to. the corresponding'end' portions C. The blank is of such dimensions as to fit properlybetween the folding members previously described. ln order to open theslots C of the blank so that the tongues F may slide through said slotsl. provide the members 5 with depressions or sockets 5a on their uppersurfaces and the members 15 having corresponding projections 15asuitably alined with the sockets 5*?, sothat when a blank is in positionbetween the folding members, as in Fig. 2, and the upper members pressedupon the lower members the projections 15a will press the parts of theblank' that lie between the corresponding slots C into the sockets 51Lto o en the slots C and thus permit the tongues to slide into saidslots. j

To cause proper operation of the parts above described I have shown post13 connected with a cross bar or beam 20, and post 13 is shown movablyconnected to said cross bar by being adapted to slide in a bearing 20ELin said bar, said post having a head 13a and a collar 21 suitablysecured to the post, a spring 22 fitting between the cross bar andcollar 21, all whereby post 13 will be moved up and down with thecrossbar but `the latter will act resiliently to prevent undue pressureand injury to the parts, but the tension of the spring will besufficient to cause proper folding of the dish blank by the'foldingmembers. Said cross bar or beam 2O is rigidly connected with dependingarms 23 whic-h travel in upright guides 24 secured upon frame 1, andinks 25 are ivotally connected with said arms and with) cranks 26 at theends of a shaft 27 suitably journaled in frame 1, whereby cross bar orbeam 20 is reciprocated. At 28.\is a shaft journaled in frame 1 andshown provided with a drive pulley 29 and alsoprovided at opposite endswith gears 30 that mesh with gears 3]. on shaft 27 for rotating thelatter.

l. have also shown means for cutting the blanks for the dish from acontinuous strip of paper or other suitable material A2, cutting theoutlines of the various portionsA of the blank, and scoring the same,and for also feeding the out and scored blanks to the folding v`devicesintermittently. For this purpose I provide a roll 32 that is journaledin suitable bearings upon frame 1, andis pro? vided upon its peripherywith proj eeting cutters, arranged so that inone revolution of ,the rollthe blank will be cut to the required width from strip A2 by the cutter33, while the cutter parts 34 cut the outer edges of the corner portionsD of the blank, the cutter parts 35 cut the notches G, the cutter parts36 cut the outer portions of the tongues F,

the cutter parts 37 cut out the angular piece between the edges C2 andD', and other cutters score the lines E in the blank, while suitablecuttersform the slots C and cut other necessary ortions of the blankthecutters being sim' ar .at opposite ends of the roll, and

also similar on opposite sides of` the longitudinal blank separatingcutter 33 so that as roll 32 revolves once a complete blank will be cut,scored, and severed from strip A2. A corresponding roll 32a is journaledin frame l beneath roll 32 and has suitable cavities in its surface thatcorrespond with the cutters of roll 32 to permit the operation oftheeutters thereon; said rolls also serve to feed the paper strip andblank. The rolls 32 and 32L are connected by gears 38, 39 to rotate inunison. At 40 is a roll journaled in suitable bearings on frame 1,between roll 32 and the folding members, and rotated in unison with roll32 b a gear 41 meshing with gear 38. Roll 40 as suitable projections40a, similarly arranged and disposed near opposite ends thereof, ada tedto engage the cut out pieces of the dishll through suitable openings 1bin frame 1 (see Fig. 2), so that such pieces will not be carried alongwith the blank to the folding members. The rolls 32, 32a and 4() may beintermittentl rotated to yaccord with the operations o' the foldingmembers in any suitable manner. For this urpose I have shown shaft 28provided with) a broken gear 42 having a suitable number of teeth forpart of its circumference and the remainder of the circumferenceprovided with no teeth,

said teeth being adapted to engage a pinion 43 secured upon a shaft 44,suitably journaled in frame 1, and carrying a gear 45 that meshes with agear 46 secured on shaft32D vof roll 32 a. By this means, as shaft 28rotates it may cause continuous reciprocation of,

ing members rise a folded dish H may be removed by hand or by anysuitable means, and then. a cut blank will be pushed over the lower setof folding members by means of the next following blank, in 'positionshown in Fig. 2, and when the upper set of folding `members descend theywill bear upon .the

blank and thereby push the blank and the lower set of foldin membersinto cavity 2 carrying the centra plates 3 and 12 straight down andholding the central part A of thev blank firmly, while at the same timethe hinged folding members will fold upwardly in the manner shown at theright in Fig. 3, thereby bending the blank on the score lines E, and theprojections 15a will push the parts of the blank that lie between theslots C into the recesses 5'l and, as the corner folding members 6 foldupwardly, the corner ortions D of the blank will be caused to ,s ideinwardly behind the end portions C thereby carrying the tongues F intothe slots C', and

lank and push such pieces `With a cavity, a movable .ceases by onecompressing action of the folding members the side, end, and cornerportions of theblank will be folded in dish form, as shown in Figs. 5and G, with the tongues F projected through the corrcsionding slots Cand locked hy the notches (it.

folded dish li may be removed While another blank is next presentedbetween the sets of folding members, so that at each complete down andup stroke of post 13 a dish may be folded and its tongues locked in thecorresponding slots, the lower set of foldinglnembers rising under theinfluence of springs 10 at each. elevation of post 13.

Having l claim is:

1. The combination of a table having a cavity provided with inwardly anddownwardly inclined Walls, a plate adapted to enter said cavity andprovided with members hinged at its edges to engage the inclined Wallsof the cavity, a reciprocative plate alined with the first named plateand provided with members hinged .at its edges, means to cause thesecond named members to press upon the first named members when folded,and means to reciprocate said plates and members. y

2. The combination of a table provided with a cavity, a plate alinedwith sald cavity and provided With members hinged at its edges, means toresiliently support said plate, a post, a plate secured to said post andprovided with members hinged at its ed es, guides carried by said post,links mova ly connected with said guide and vpivotally connected withthe second named hinged members, andv means to reciprocate said post.

3. The combination of a table provided with a cavity, a late alined Withsaid cavity, means to movab y support said plate, folding members hingedat the edges ofsaid plate, a post, a centrally disposed plate carried bysald post and provided With members hinged at its edges, a cross barmovably connected with said post, a sprin interposed'between said crossbar and sai post, and means to reciprocate said cross bar.

4. The combination of a table provided late alined with said cavityandprovided) With members hinged near its edges, plungers connected withsaid plate, guides for said plungers,

means to limit the upward'movement o the plungerssprin s to raise saidplate, a post 1 aving a plate isposed over the first named When the"upper set of folding members next rise the now described my inventionwhat plate and provided with at its edges, means to cause s d hingedmembers to press upon a blank, and means to reciprocate said secondnamed plate and members.

The combination of a table rovided with a cavity, a centrally disposed pate over the cavity, and provided. with members hinged at its edges,means to resiliently support said plate a post provided With a latedisposed over the first named plate and aving members hinged at itsedges and disposed over the'corresponding first named hinged members,said post having guides above its lplate, links pivotally connected withthe inged members of the post and movably connected with said guides,and means to reciprocate said post.

6. The combination of a table having a cavity,'a movable plate over thecavity and having folding members hinged at its edges, a reci rocativecentrally disposed plate over the rst named plate, folding membershinged thereto at its edges, means to cause said plates and members tocoact in pressing a blank interposed between them, a'pair of rolls oneof Which is provided with cutters arranged to cut and score a blank andcut the blank from a continuous strip, and the other lro'll havingdepressions corresponding to said cutters, a roll located between thefirst named rolls and the folding members and provided with projectionsalined With openings in the table to push pieces out from the blankthrough said openings, and means to intermittently rotate said rollsduringreciprocations of said folding members.

7. The combination of a table having a cavity, a movable plate over thecavity and having folding members hinged at. its edges, a reciprocativecentrally dis vosed plate over the first named plate, fo ding membershingedthereto at its edges, means to cause said plates and members toco-act in pressing a blank interposed between them, the folding membersat opposite ends ofA one of said plates being provided with recesses,and the o posed members connected With'the other pl) alinedl with theate having projections recesses.

Si ned at NewYork city, in the county of rg nembers hinged.

